?day ppm

?day ppm, Total:2 items.

The international standard classification for "?day ppm" includes: .

The Chinese standard classification for "?day ppm" includes: .

American Gas Association

• AGA PPM-2006 Plastic Pipe Manual for Gas Service (Eighth Edition; XR0603)

Electronic Industrial Alliance (U.S.)

• EIA IS-32-1989 Assessment of Quality Levels in PPM Using Variables Test Data Errata 4/19/1990

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